Fanuc Virtual Robot loaded from .ce\robot_rrs in Robcad

I've got an issue with Fanuc Virtual Robot. Customer demands (and states it should run that way) that Virtual robots should be loaded from robot_rrs directory in Robcad cell (like for Kuka i.e.)

Problem is that I can't make it work. I found that path (C:\ProgramData\FANUC\Virtual Robots) is set by default in file c:\Program Files (x86)\FANUC\Shared\Off Line\FRVRC\frvirtual.exe.config and that's where Virtual Robots have to be stored.